apache--hertzbeat/home/docs/help/kubernetes.md

id, title, sidebar_label, keywords

id	title	sidebar_label	keywords
kubernetes	Monitoring Kubernetes	Kubernetes Monitor	open source monitoring tool open source kubernetes monitoring tool monitoring kubernetes metrics

Collect and monitor the general performance metrics of Kubernetes.

Pre-monitoring operations

If you want to monitor the information in 'Kubernetes', you need to obtain an authorization token that can access the API Server, so that the collection request can obtain the corresponding information.

Refer to the steps to obtain token

method one

1. Create a service account and bind the default cluster-admin administrator cluster role

   kubectl create serviceaccount dashboard-admin -n kube-system

2. User Authorization

   kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin
   kubectl -n kube-system get secret | grep dashboard-admin | awk '{print $1}'
   kubectl describe secret {secret} -n kube-system
   

method two

kubectl create serviceaccount cluster-admin
kubectl create clusterrolebinding cluster-admin-manual --clusterrole=cluster-admin --serviceaccount=default:cluster-admin
kubectl create token --duration=1000h cluster-admin

Configure parameters

Parameter name	Parameter Help describes the
Monitor Host	THE MONITORED PEER IPV4, IPV6 OR DOMAIN NAME. Note ⚠️ that there are no protocol headers (eg: https://, http://).
Monitoring Name	A name that identifies this monitoring that needs to be unique.
APiServer port	K8s APiServer port, default 6443
token	Authorize the Access Token
URL	The database connection URL is optional, if configured, the database name, user name and password parameters in the URL will override the parameter configured above
Collection interval	Monitor the periodic data acquisition interval, in seconds, and the minimum interval that can be set is 30 seconds
Whether to probe	Whether to check the availability of the monitoring before adding a monitoring is successful, and the new modification operation
Description Comment	For more information identifying and describing the remarks for this monitoring, users can remark the information here

Collect metrics

metric collection: nodes

Metric Name	metric unit	Metrics help describe
node_name	None	Node name
is_ready	None	Node Status
capacity_cpu	None	CPU capacity
allocatable_cpu	None	CPU allotted
capacity_memory	None	Memory capacity
allocatable_memory	None	Memory allocated
creation_time	None	Node creation time
uid	None	UUID unique identifier

metric Collection: namespaces

Metric Name	metric unit	Metrics help describe
namespace	None	namespace name
status	None	Status
creation_time	None	Created
uid	None	UUID unique identifier

metric collection: pods

Metric Name	metric unit	Metrics help describe
pod	None	Pod name
namespace	None	The namespace to which the pod belongs
status	None	Pod status
restart	None	Number of restarts
host_ip	None	The IP address of the host is
pod_ip	None	pod ip
creation_time	None	Pod creation time
start_time	None	Pod startup time
uid	None	UUID unique identifier

metric Collection: services

Metric Name	metric unit	Metrics help describe
service	None	Service Name
namespace	None	The namespace to which the service belongs
type	None	Service Type ClusterIP NodePort LoadBalancer ExternalName
cluster_ip	None	cluster ip
selector	None	tag selector matches
creation_time	None	Created
uid	None	UUID unique identifier